The series follows four curious young dinosaur friends named Rocky, Bill, Tiny, and Mazu as they go on adventures and learn about the titular dinosaur from the book the series is based on, the biggest, fiercest dinosaur of all: Gigantosaurus. The series premiered on January 18, 2019, on Disney Channel as part of the Disney Junior block, airing on its dedicated channel as well. A fourth season was in production as of June 2023, but its status is currently unknown following the liquidation of Cyber Group Studios.
Based on the bestselling book by Jonny Duddle and publisher Templar, the series follows four curious young dinosaur friends named Rocky, Bill, Tiny, and Mazu as they go on adventures.